Igor Arrieta Lizarraga (born 8 December 2002) is a Spanish cyclist, who currently rides for UCI WorldTeam UAE Team Emirates XRG.

[2] He is the son of former professional cyclist José Luis Arrieta.

[3] Arrieta turned professional in August 2021 with UCI ProTeam Equipo Kern Pharma after winning the national under-23 time trial championships earlier that year.

In February 2022, he won the young rider classification and finished 7th overall at the O Gran Camiño.

[4] He joined UCI WorldTeam UAE Team Emirates in 2024 on a three-year contract.